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Best HVAC Contractors in Muscoy, CA (2026)

608 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Muscoy: All Pro Cooling, Heating, Plumbing & Electrical, CR Score 64/100; 4.8★ from 7,425 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): Year Round Heating & Air Conditioning, posts 24/7 hours; ranked #2 of 608.

  3. 26

    Most-reviewed: All Pro Cooling, Heating, Plumbing & Electrical, 4,107 Google reviews at 4.7★, the most of 608 ranked after All Pro Cooling, Heating, Plumbing & Electrical; ranked #26.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

608 Muscoy HVAC contractors are ranked here by CR Score, from ten published factors. 220 are open 24/7, 462 open Saturdays and 302 open Sundays, based on posted hours. The median Google rating is 4.9★ across 608 rated businesses.

Most of this list also appears on the HVAC contractors in San Bernardino ranking. See HVAC contractors in San Bernardino

Top 10 HVAC contractors in Muscoy at a glance

Top 10 HVAC contractors in Muscoy at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1All Pro Cooling, Heating, Plumbing & Electrical644.8★ (7,425)Ontario, 13 mi away24/7Overall
2Year Round Heating & Air Conditioning645.0★ (1,159)Redlands, 9 mi away24/7Emergencies
3Henley's Plumbing & Air644.8★ (881)San Bernardino, 3 mi away24/7—
4Lasting Legacy Plumbing Heating and Air645.0★ (1,343)Redlands, 11 mi away24/7—
5Air One Air Conditioning, Heating, & Plumbing644.9★ (786)Colton, 6 mi away24/7—
6MSP HEATING AND AIR CONDITIONING645.0★ (1,203)Jurupa Valley, 11 mi away24/7—
74 Points A/C and Heating624.9★ (949)San Bernardino, 7 mi away24/7—
8Service Champions Plumbing, Heating & AC624.8★ (1,263)Colton, 6 mi awaySat · Sun · Evenings—
9Ballard Plumbing Heating & Air Conditioning624.9★ (2,293)San Bernardino, 6 mi awaySat—
10Ace Home Heating & Air Conditioning614.7★ (1,176)Riverside, 12 mi away24/7—

The 608 best HVAC contractors in Muscoy, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  16. #16 Plus Air Duct Testing

    Based in Jurupa Valley, 13 mi away

    61/100CR Score

    Ranked #16 because of its Google rating and trade focus: 5.0★ from 401 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 401 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    9346 Galena St Ste. C, Jurupa Valley, CA 92509
    View profile for Plus Air Duct Testing(877) 200-7587

  21. #21 AC Plus Heating & Air

    Based in Rancho Cucamonga, 12 mi away

    61/100CR Score

    Ranked #21 because of its Google rating and trade focus: 5.0★ from 201 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 201 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8351 Rochester Ave ste 103b, Rancho Cucamonga, CA 91730
    View profile for AC Plus Heating & Air(951) 783-3745

  23. #23 BACS HVAC Services

    Based in Rialto, 3 mi away

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 5.0★ from 116 Google reviews, listed on Google as “HVAC contractor”.

    • 5.0★ from 116 Google reviews
    Hours
    Mon–Sat 8 AM–6 PM · Sun 8 AM–4 PM
    Address
    823 W Mariana St, Rialto, CA 92376
    View profile for BACS HVAC Services(909) 552-3189

HVAC contractors ranked #26 to #30

#1 to #25 are shown in full above. Here are #26 to #30, in CR Score order; each links to its profile. We publish the top 30 of 608 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Muscoy, ranks 26 to 30
RankBusinessCR ScoreGoogle ratingDistance
26All Pro Cooling, Heating, Plumbing & Electrical604.7★ (4,107)24 mi
28RKM Heating and Air Conditioning604.9★ (1,073)15 mi
30Cisneros Brothers Plumbing, Heating & AC Repair, Water Damage Restoration & Flood Services604.8★ (1,711)22 mi

How much do HVAC contractors cost in Muscoy?

National price ranges in USD, not adjusted for Muscoy. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Muscoy?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

How to check an HVAC contractor's license in California

In California, Contractors State License Board (CSLB) licenses C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license.

Jobs of $1,000 or more in labor and materials (from January 1, 2025).

  1. Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

When to hire an HVAC contractor in California

California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.

How we ranked Muscoy HVAC contractors

We scored 608 Muscoy HVAC contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Muscoy data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

HVAC contractors in Muscoy: frequently asked questions

Who is the best HVAC contractor in Muscoy?

By CR Score, the highest-ranked HVAC contractor in Muscoy, CA is All Pro Cooling, Heating, Plumbing & Electrical with a CR Score of 64/100. It has 4.8★ from 7,425 Google reviews. It is open 24/7. Year Round Heating & Air Conditioning (#2) and Henley's Plumbing & Air (#3) follow. We ranked 608 HVAC contractors on ten factors, last updated October 22, 2026.

Which HVAC contractors in Muscoy are open 24/7?

220 ranked HVAC contractors in Muscoy post 24/7 hours. The highest-ranked are All Pro Cooling, Heating, Plumbing & Electrical (#1), Year Round Heating & Air Conditioning (#2) and Henley's Plumbing & Air (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Muscoy work on weekends?

462 of 608 ranked HVAC contractors post Saturday hours and 302 post Sunday hours. The highest-ranked open Saturdays are All Pro Cooling, Heating, Plumbing & Electrical (#1), Year Round Heating & Air Conditioning (#2) and Henley's Plumbing & Air (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in California?

In California, Contractors State License Board (CSLB) handles licensing and covers C-20 Warm-Air Heating, Ventilating and Air-Conditioning contractor license. Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).

How much does ac replacement cost in Muscoy?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Muscoy. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Muscoy HVAC contractors have?

The median Google rating among 608 rated HVAC contractors in Muscoy is 4.9★, with a median of 21 reviews. All Pro Cooling, Heating, Plumbing & Electrical has the most, 7,425 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Muscoy?

California's HVAC demand peaks during summer heat waves and the first cold snaps. Spring and fall are the easiest times to book maintenance.

How does ContractorsRanked rank HVAC contractors?

Each HVAC contractor gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for Muscoy

  1. October 2026: CR Scores recalculated for 608 hvac contractors serving Muscoy.
  2. October 2026: 4 duplicate listings merged.

More HVAC contractors and Muscoy pages

Other trades in Muscoy